Josef Fleischmann and others, early 20th century

Josef Fleischmann and others, early 20th century
A collection of entomological studies
three signed 'J.Fleischmann n.d.Nat' (on recto), with artist's stamp on the reverse, four signed with different monogram's
pen and ink, pencil, watercolour and bodycolour in grisaille
one framed
4¾ x 7½in. (12 x 19cm.) and similar (8)